1<SUP>－－</SUP>QQqq STATES, THEIR MIXING WITH QQ STATES, AND HADRONIC TRANSITIONS

ZHAO Guang-Da

近期发现有不法分子冒充我刊与作者联系，借此进行欺诈等不法行为，请广大作者加以鉴别，如遇诈骗行为，请第一时间与我刊编辑部联系确认（《中国物理C》（英文）编辑部电话：010-88235947,010-88236950），并作报警处理。

本刊再次郑重声明：

（1）本刊官方网址为cpc.ihep.ac.cn和https://iopscience.iop.org/journal/1674-1137

（2）本刊采编系统作者中心是投稿的唯一路径，该系统为ScholarOne远程稿件采编系统，仅在本刊投稿网网址（https://mc03.manuscriptcentral.com/cpc）设有登录入口。本刊不接受其他方式的投稿，如打印稿投稿、E-mail信箱投稿等，若以此种方式接收投稿均为假冒。

（3）所有投稿均需经过严格的同行评议、编辑加工后方可发表，本刊不存在所谓的“编辑部内部征稿”。如果有人以“编辑部内部人员”名义帮助作者发稿，并收取发表费用，均为假冒。

《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 1984, Vol. 8> Issue(3) : 316-322

1^－－QQqq STATES, THEIR MIXING WITH QQ STATES, AND HADRONIC TRANSITIONS

ZHAO Guang-Da ^,

Physics Department, Peking University

Abstract
HTML
Reference
Related

PDF

Abstract：
In the framework of the MIT bag model and under Born-Oppenheimer approximation, the 1^－－QQqq states and their mixing with QQ states are discussed, where Q=c, b; q=u, d, and both QQ and qq are colour singlets. The mixing is introduced through a coupling, constant. An approximate scaling law for hadronic transitions (QQ)′→(QQ)ππ could be obtained and the ratio of Γ(ψ′→4ππ) to Γ(Υ′→Υππ) could be compatible with the data if the coupling constant is flavour-independent. The mixing is dominated by QQqq states in which qq is a P-wave 0⁺⁺ state and therefore the observed isotropic angular distribution of the pion in ψ′→ψππ and γ′→γππ can be well explained.

References

[1]

R. L. Jaffe, F. E. Low, Phys. Rev., D19(1979), 2105.[2] 赵光达, Nucl. Phys., B183(1981). 435.[3] 赵光达, Nucl. Phys., B169(1980), 281; 赵光达, S. F. Tuan, 广州粒子物理理论讨会文集 (980),426.[4] T. DeGrand et al., Phys. Rev., D12(1975), 2060.[5] T. A De Grand, R. L. Jaffe, Ann. Phys., 100(1976), 425.[6] E. V. Shuryak, Phys. Lett., 93B(198D), 134.[7] E. Eichten et al. Phys. Rev., D210980), 203.[8] F. C. Porter, SLAG-PUB-2895 (1982).[9] J. J. Cope et al., Phys. Lett., 91B(198O), 259.[10] D Andrem et al., Phys. Rev. Lett., 50(1983), 807.[11] K. Gottfried, Phys. Rev. Lett., 40(1978), 598; T. M. Pan, Phys. Rev., D22(1980).1652; Y.P. Kuang, T.M. Yan, Phys. Rev., D24(1981), 2874.[12] R. Barbieri et al., Phys. Lett., 60B(1976), 183.[13] G. S. Abrams et al., Phys. Rev. Lett., 33(1974), 1453; ibid., 34(1975), 118.[14] L. S. Brown, R. N. Cahn, Phys. Rev. Lett., 35(1975), 1.

[1]	LIU Xiang . Derivation of a 1/r² potential term for QQ in a potential model. Chinese Physics C, 2010, 34(9): 1482-1484. doi: 10.1088/1674-1137/34/9/078
[2]	WAN Meng , TIAN Wei-Zhao , CHEN Hong . Contributions of qqqq q components to nucleon spin structure. Chinese Physics C, 2009, 33(S1): 18-20. doi: 10.1088/1674-1137/33/S1/006
[3]	CUI Ying , CHEN Xiao-Lin , DENG Wei-Zhen , ZHU Shi-Lin . Possible Heavy Tetraquarks qQqQ,qqQQ and qQQQ. Chinese Physics C, 2007, 31(1): 7-13.
[4]	DAI Lian-Rong , FU Yao , LIU Zhong-Zuo , WANG Yin , TONG Lei , LI Chun-Ran . Structure of Ξ^*Ω_(0,1/2) Dibaryon. Chinese Physics C, 2006, 30(S2): 271-273.
[5]	GUO Fen-Kun , SHENG Peng-Nian , JIAN Huan-Qing , PING Rong-Gang . Decay Υ(3S)→Υ(1S)π＋π－and a Possible bbqq State. Chinese Physics C, 2005, 29(12): 1121-1124.
[6]	JIANG Jun-Qin . Squeezing Property of the States Generated by the Excitation on the SU_q(1,1) Even and Odd q-Coherent States. Chinese Physics C, 2002, 26(8): 786-790.
[7]	JIANG JunQin . Study of the Vacuum State for 2+1 Dimensional SU(2) Lattice Gauge Field Theory. Chinese Physics C, 2000, 24(10): 922-926.
[8]	SHEN QiXing , YU Hong , LI DeMin . Search for the Isoscalar 1^－+ Exotic State at BEPC/BES. Chinese Physics C, 2000, 24(10): 908-914.
[9]	FANG Jian , YU Hong , SHEN QiXing . Study on Mixing of Pseudoscalar Mesons η,η′and Non-qq Meson. Chinese Physics C, 2000, 24(3): 190-195.
[10]	Jiang Junqin , Luo Xiangqian . Study of the Vacuum State in (2+1)-Dimensional U(1) Lattice Gauge Theory. Chinese Physics C, 1999, 23(8): 774-783.
[11]	Wu Jimin . Understanding the Meson States and Non-qq States. Chinese Physics C, 1999, 23(2): 135-141.
[12]	Wang Qun , Xie Qubing . Color Singlet Set of Multiparton System qq+ng. Chinese Physics C, 1995, 19(12): 1100-1107.
[13]	Wang Qun , Xie Qubing . Production Percentages of L=1 Excited Baryons in e⁺e^－ Annihilation. Chinese Physics C, 1994, 18(9): 807-812.
[14]	KUANG Le-Man , ZENG Gao-Jian . Super-coherent State Representation of Lie Superalgebra B(0,1). Chinese Physics C, 1993, 17(3): 215-221.
[15]	YU Hong , SHEN Qi-Xing . Restudies of Searching for 1^+－ Exotic State. Chinese Physics C, 1992, 16(2): 187-192.
[16]	YU Hong , SHEN Qi-Xing . J/ψ Hadronic Decay and 11^－+ Exotic States. Chinese Physics C, 1991, 15(9): 861-864.
[17]	PAN Feng . Vector Coherent State Representations of SU₃ in U₁ U₁ Basis. Chinese Physics C, 1991, 15(1): 80-86.
[18]	LIAO Ji-Zhi . APPROXIMATE ANGULAR MOMENTUM PROJECTION OF THE DEFORMED HARTREE-FOCK STATE FOR K=1. Chinese Physics C, 1987, 11(5): 682-689.
[19]	CAI Yan-Huang , FU De-Ji , XIA Ke-Ding , XU Gong-Ou . EFFECT OF MULTIPOLE VIBRATION ON M1 TRANSITION OF 1⁺ STATES IN ²⁰⁸Pb. Chinese Physics C, 1984, 8(5): 611-618.
[20]	FU TE-CHI , FANG PAO . THE FINE STRUCTURE OF ²⁰⁸Pb 1⁺ STATES. Chinese Physics C, 1978, 2(3): 263-266.

Access

Get Citation

ZHAO Guang-Da. 1^－－QQqq STATES, THEIR MIXING WITH QQ STATES, AND HADRONIC TRANSITIONS[J]. Chinese Physics C, 1984, 8(3): 316-322.

ZHAO Guang-Da. 1^－－QQqq STATES, THEIR MIXING WITH QQ STATES, AND HADRONIC TRANSITIONS[J]. Chinese Physics C, 1984, 8(3): 316-322. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1900-01-01
Revised: 1900-01-01

Article Metric

Article Views(2666)
PDF Downloads(419)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

1^－－QQqq STATES, THEIR MIXING WITH QQ STATES, AND HADRONIC TRANSITIONS

ZHAO Guang-Da ^,

Corresponding author: ZHAO Guang-Da,

Physics Department, Peking University

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1984-06-05

Abstract: In the framework of the MIT bag model and under Born-Oppenheimer approximation, the 1^－－QQqq states and their mixing with QQ states are discussed, where Q=c, b; q=u, d, and both QQ and qq are colour singlets. The mixing is introduced through a coupling, constant. An approximate scaling law for hadronic transitions (QQ)′→(QQ)ππ could be obtained and the ratio of Γ(ψ′→4ππ) to Γ(Υ′→Υππ) could be compatible with the data if the coupling constant is flavour-independent. The mixing is dominated by QQqq states in which qq is a P-wave 0⁺⁺ state and therefore the observed isotropic angular distribution of the pion in ψ′→ψππ and γ′→γππ can be well explained.